The development of dryer machinery in China began with the imitation of foreign dryers such as Japan and the former Soviet Union in the early days of Red Star. Due to the complicated mechanical structure, high consumption of steel, and high cost of the dryer, the dryer was not suitable for the economic and institutional conditions in rural areas and was used only by state-owned farms, grain stores, and collective enterprises. In the late 1970s, relevant scientific research units began to develop grain dryers suitable for China's national conditions. Most of them are suitable for use by farm production companies and rural production teams; after the 1980s, China's rural economic system began to undergo reforms, and most of the dryer machines developed were developed in the direction of multi-use and miniaturization; since the 1990s. With the in-depth development of rural reforms, the level of rural dry mill economy and agricultural productivity has increased rapidly with manufacturers of ball mills, and professional and intensive scale operations have also seen new development. In particular, large-scale grain warehouses and seed and grain production bases of state-owned agricultural land reclamation systems gradually equiped with sets of grain dryer equipment, and together with warehousing, processing, and other facilities, became a major representative of grain drying machinery in China. Grain dryer machinery was also imported from the United States, Canada, Japan, Taiwan, and other countries and regions. Some colleges and universities and related research institutes have also developed corresponding series of grain dryer equipment to serve the domestic food system. The development of the technology of grain drying roller drying machine gradually makes the drying machinery mature and perfect, and it also accelerates the pace of agricultural modernization. Although the development of drying machinery in our country has been a continuous exploration history for more than 30 years, there are more than 50 production companies, but the production is not large, the technology is low, there are not many mature models, the product types are few, and the energy consumption is high, the automation level Low, lack of small and medium-sized multi-functional drying machinery suitable for agricultural machinery specialized households, large grain producers and village groups. The existing national grain drying machinery more than 20,000 units per year mechanical drying grain accounts for only about 1% of national output, while the developed world grain drying machinery accounted for about 95% of total production, seen our country's grain drying machinery Development cannot be adapted to the needs of grain production development. E-Bike Part, Motorcycle Engine,Motorcycle Tire,Other Motorcycle Parts & Accessories E-bike Part,Electric bikes Co., Ltd. , http://www.nbbikekit.com